Fix license check

[rainbend]

No description provided.

[codecov-commenter]

Codecov Report

Merging #146 (3abb2cd) into master (14afcd9) will increase coverage by 0.21%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #146      +/-   ##
==========================================
+ Coverage   70.16%   70.38%   +0.21%     
==========================================
  Files          17       17              
  Lines         915      915              
==========================================
+ Hits          642      644       +2     
+ Misses        225      224       -1     
+ Partials       48       47       -1     

Impacted Files	Coverage Δ
config_discovery.go	91.66% <ø> (ø)
correlation.go	88.57% <ø> (ø)
internal/idgen/idgen.go	0.00% <ø> (ø)
log/context.go	100.00% <ø> (ø)
noop.go	100.00% <ø> (ø)
plugins/http/client.go	45.83% <ø> (ø)
plugins/http/server.go	46.15% <ø> (ø)
propagation/propagation.go	53.33% <ø> (ø)
reporter/grpc.go	55.55% <ø> (ø)
reporter/log.go	0.00% <ø> (ø)
... and 8 more

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